4.5 Carat Yellow Lab Grown Diamond Engagement Ring – Radiant Cut Three-Stone with Trapezoid Sides | Florence
A 4.5-carat Fancy Vivid Yellow lab grown diamond, radiant-cut and set as a three-stone ring between two white tapered-trapezoid diamonds, with yellow-gold prongs on a white-gold pavé band. Handcrafted to order in your choice of 10K, 14K or 18K yellow, white or rose gold, or platinum. The vivid-yellow radiant is flanked by crisp white step-cut trapezoids and lifted by yellow-gold claws, while the white-gold pavé band keeps the whole design bright and balanced.
- 4.5ct Fancy Vivid Yellow centre — radiant-cut lab grown diamond, VS2 clarity, the most saturated yellow grade
- White trapezoid sides — tapered-trapezoid and round white lab grown diamonds, 1.97 ct total
- Three-stone design — radiant centre flanked by two step-cut trapezoids on a pavé band
- Your choice of metal: 10K, 14K, 18K solid gold or platinum — shown in two-tone 14K white gold with 14K yellow gold prongs
- Radiant cut — brilliant, high-sparkle faceting in a soft rectangular shape
- IGI® certified — independent diamond grading report included
- Handcrafted to order — made for you in 1–2 weeks, in your ring size (US 4–12)
- Free worldwide insured shipping + lifetime warranty
Made to order in 1–2 weeks · 30-day returns · Starting at $4,770.00
Full Specifications
| Specification | Detail |
|---|---|
| Center Stone | 4.5 ct Lab Grown Diamond, Fancy Vivid Yellow, Radiant Cut, VS2 Clarity |
| Side Diamonds | 1.97 ct total — white tapered-trapezoid & round lab grown diamonds |
| Total Carat Weight | approx. 6.47 ct (4.5 ct center + 1.97 ct side stones) |
| Setting | Three-Stone (radiant centre + tapered-trapezoid sides), pavé band |
| Band Width | 2.2mm |
| Metal Options | 10K, 14K, 18K Solid Gold, Platinum Pure |
| Metal Colors | Yellow, Rose, White Gold |
| Ring Size | US 4–12 (half sizes included) |
| Certification | IGI® diamond grading report |
| Production | Handcrafted to order — 1–2 weeks |
| Included | Free insured worldwide shipping, lifetime warranty, 30-day returns |
Why Mohana
- Made to order, not pulled from inventory — every ring is handcrafted to your finger size and metal choice over 1–2 weeks. Your ring has never been worn or sat in a display case.
- Direct-from-workshop pricing — you pay for the diamond, the metal, and the craftsmanship. No retail floor, no franchise markup, no middleman.
- IGI® certified — an independent grading report ships with the ring. Verify the specifications directly on the IGI portal.
- Custom variations welcome — different carat, shape, metal, or setting? Our craft team can quote any reasonable modification before production begins.
- Real human concierge — contact us for sizing help or questions. We respond personally, not via bot.
About Fancy Yellow Lab Grown Diamonds
Natural Fancy Vivid Yellow diamonds — the deepest, most saturated yellow grade — are exceptionally rare and command extraordinary premiums at auction. Lab grown technology now makes that same vivid canary colour attainable.
Mohana's fancy yellow lab grown diamonds are chemically, optically, and physically identical to mined yellow diamonds — graded by the same IGI and GIA laboratories. The yellow comes from nitrogen within the crystal lattice (the same mechanism as natural yellow diamonds), is permanent, and will never fade. This stone is IGI certified — verify its grades directly on the IGI portal.
Explore the full yellow diamond collection.
Frequently Asked Questions
Are fancy yellow lab grown diamonds real diamonds?
Yes. Lab grown yellow diamonds are 100% real diamonds — same crystal structure, same hardness (10 on the Mohs scale), same optical brilliance as mined diamonds. This centre stone is a Fancy Vivid Yellow, VS2 clarity, IGI certified.
What are the side stones?
Two white tapered-trapezoid step-cut diamonds flank the centre, with additional round white diamonds on the band — 1.97 ct in total. The crisp, colourless step cuts frame and intensify the vivid-yellow radiant.
Why are the prongs a different colour from the band?
The band is 14K white gold and the prongs holding the centre are 14K yellow gold. Warm yellow-gold prongs sit against a yellow diamond and deepen its colour, while the white-gold band keeps the side stones bright and neutral — a deliberate two-tone choice. Two-tone is shown here; your ring is made in the single metal you select — or ask us to recreate the two-tone look.
Can this ring be resized?
Yes — complimentary resizing within the first year.
How much does this ring cost?
The Florence starts at $4,770 in 10K solid gold, $4,980 in 14K, and $5,190 in 18K gold or platinum.
What's included with my ring?
The IGI® grading report, a signed Mohana certificate of authenticity, free worldwide insured shipping, a lifetime craftsmanship warranty, and a 30-day return window.
How long does it take to make and ship?
Each ring is handcrafted to order in 1–2 weeks, then ships free worldwide with full insurance.